CeramicSpeed BSA Threaded Bottom Bracket
- Save watts and ride faster with guaranteed lowest friction, optimized power transfer, and longest product lifetime
- External BSA, English threaded bottom brackets featuring anodized aluminum cups
- Coated: metallic layer that covers bearing races making them 75% harder than steel. Even lower friction and highly resistant to corrosion
- Standard: low drag with hardened steel races and ceramic ball bearings
- In the box: 2 threaded cups, 2 dust covers with built-in spacers, spacer tube, 10mm syringe of All Round Grease, and sticker sheet
- For 73mm bottom bracket English shells
- 29mm Spindle